This was a super fun game that kept me immerse the entire time. Didn't realize that you could change the type of tower until the very last level so I just played with the Gatling the entire time. Keeping in mind that you made this entire thing in Pico 8, would it be possible to put an explanation of the different types of guns or even better - make some sort of projectile or laser that showed how the guns worked? I was initially confused because Gatling seemed to be shooting enemies that weren't in it's lane (because it was). Only after I made the assumption that the Gatling was able to shoot in three lanes at once did I realize that it said that in the description of the game. Again, I have never programmed in Pico 8 but I do know that there are severe limitations on what you can do.
Other than the little problems that I have with an inability to read the description of the game lol - I absolutely loved this game. I was really enjoying the music and even noticed my head bobbing along to it at certain points. Great game even under the constraints provided by Pico 8! I'm gonna save this one and come back to it later!